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fix: reduce identify message size limit (#1230)

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Adds a config option to specify a maximum message size we'll accept
for an Identify message.

The default is 8KB, the same as go-libp2p - previously we fell back
to the default `maxMessageLength` option of `it-length-prefixed`
which is 4MB.

Also adds a default timeout for reading responses to identify
requests which is used if an AbortSignal is not passed in.

The default timeout also aligns with go-libp2p.
This commit is contained in:
Alex Potsides
2022-05-31 17:10:40 +01:00
committed by GitHub
parent 4c0c2c6d3e
commit 824720fb8f
3 changed files with 145 additions and 7 deletions
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2
doc/API.md
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@ -97,7 +97,7 @@ Creates an instance of Libp2p.
| options.modules | [`Array<object>`](./CONFIGURATION.md#modules) | libp2p [modules](./CONFIGURATION.md#modules) to use |
| [options.addresses] | `{ listen: Array<string>, announce: Array<string>, announceFilter: (ma: Array<multiaddr>) => Array<multiaddr> }` | Addresses for transport listening and to advertise to the network |
| [options.config] | `object` | libp2p modules configuration and core configuration |
| [options.identify] | `{ protocolPrefix: string, host: { agentVersion: string }, timeout: number }` | libp2p identify protocol options |
| [options.identify] | `{ protocolPrefix: string, host: { agentVersion: string }, timeout: number, maxIdentifyMessageSize: number }` | libp2p identify protocol options |
| [options.ping] | `{ protocolPrefix: string }` | libp2p ping protocol options |
| [options.fetch] | `{ protocolPrefix: string }` | libp2p fetch protocol options |
| [options.connectionManager] | [`object`](./CONFIGURATION.md#configuring-connection-manager) | libp2p Connection Manager [configuration](./CONFIGURATION.md#configuring-connection-manager) |